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  2. High explosive nuclear effects testing - Wikipedia

    en.wikipedia.org/wiki/High_explosive_nuclear...

    3 TNT Underwater Determine effects of a 20-kt nuclear explosion in water depths typical of harbor areas. Sevier Bridge NOL 24 Nov 1953 Sevier Bridge Reservoir, Salt Lake City, Utah United States 90,000 1 TNT Mk 14 Demolition Underwater -11.1 Scale the base surge of a high-explosive in shallow water with Test Baker of Operation Crossroads at Bikini.

  3. Grain size - Wikipedia

    en.wikipedia.org/wiki/Grain_size

    Size ranges define limits of classes that are given names in the Wentworth scale (or Udden–Wentworth scale named after geologists Chester K. Wentworth and Johan A. Udden) used in the United States. The Krumbein phi (φ) scale, a modification of the Wentworth scale created by W. C. Krumbein [1] in 1934, is a logarithmic scale computed by the ...

  4. Roundness (geology) - Wikipedia

    en.wikipedia.org/wiki/Roundness_(Geology)

    F=f(Sh, A, R, Sp, T) where f denotes a functional relationship between these terms and where Sh denotes the shape, Sp the sphericity and T the micro-scale surface texture. [ 2 ] An example of this practical use has been applied to the roundness of the grains in the Gulf of Mexico in order to observe the distance from the source rocks.

  5. Unified Soil Classification System - Wikipedia

    en.wikipedia.org/wiki/Unified_Soil...

    Sands. 50% or more of coarse fraction passes No.4 sieve Clean Sands. Less than 5% fines Cu ≥ 6 and 1 ≤ Cc ≤ 3 SW Well-graded sand Cu < 6 and/or Cc < 1 or Cc > 3 SP Poorly graded sand Sands with Fines. More than 12% fines Fines classify as ML or MH SM Silty sand Fines classify as CL or CH SC Clayey sand FINE-GRAINED SOILS

  6. Ironsand - Wikipedia

    en.wikipedia.org/wiki/Ironsand

    It is composed mainly of magnetite, Fe 3 O 4, and also contains small amounts of titanium, silica, manganese, calcium and vanadium. [1] Ironsand has a tendency to heat up in direct sunlight, causing temperatures high enough to cause minor burns. As such it forms a hazard in New Zealand at popular west-coast surf beaches such as Piha. [2]

  7. Maturity (sedimentology) - Wikipedia

    en.wikipedia.org/wiki/Maturity_(sedimentology)

    A mature sediment is more uniform in appearance, for the sediment grains are well rounded, are of a similar size and exhibit little compositional variation. Conversely, an immature sediment contains more angular grains, diverse grain sizes, and is compositionally diverse.

  8. Sands of Fire - Wikipedia

    en.wikipedia.org/wiki/Sands_of_Fire

    Bob Proctor reviewed the game for Computer Gaming World, and stated that "Frankly, Sands of Fire is a competent program that does not break any new ground in computer gaming. Still, graphics and sound are above average and, though it is not an overly accurate simulation, it has enough realistic "feel" to satisfy many of us.

  9. Thermal barrier coating - Wikipedia

    en.wikipedia.org/wiki/Thermal_barrier_coating

    Therefore, general requirements for an effective TBC can be summarized as needing: 1) a high melting point. 2) no phase transformation between room temperature and operating temperature. 3) low thermal conductivity. 4) chemical inertness. 5) similar thermal expansion match with the metallic substrate. 6) good adherence to the substrate.